Compressor question

Jump to latest Follow Reply
Kage1339

Kage1339

Member
Nov 5, 2023
14
20
Eureka, MO USA
So I am new to this and am looking for some hardware to put on my fill whip. I’d like to put an on/off and pressure release valve after my cheap blue air filter so when I fill multiple bottles I don’t shes to pressurize both air filters. Maybe I’m out of my mind thinking this is a good idea. I’m new so please go easy. This is my setup. I’ve filled my rifle exactly one time with it 😂. Thanks in advance!!

IMG_1111.jpeg
 
A simple one-way fitting between your blue & gold filters will work. Does your blue filter contain desiccant? If so, it needs to be vertical to 1) reduce the chance of moisture-laden air being able to bypass the desiccant by creeping along the upper surface of a horizontal filter and 2) let gravity pull any moisture down to the bottom of the vertical filter, as far away from the exit fitting as possible.
 
Upvote 0
Both filters need to be vertical with the output at the top.
Here is some discussion on keeping air in the filters so they don't need to be filled each time. Read it a couple of times because some of its hard to follow:
https://www.airgunnation.com/thread...ur-large-water-trap-filter-each-time.1292592/
PS put the small filter first inline as it will stop a lot of moisture. And dry the cotton filter after each run.
 
  • Like
Reactions: Gerry52 and Camaro454
Upvote 0
If you do go the route of isolating the drier circuit it is a good idea to have a pressure gauge somewhere in the circuit so that you can monitor any pressure decay between sessions, which would indicate a tiny leak. Learn how to teflon tape pipe threads with the correct amount of tape and not overhanging the end of the male fitting because tiny pieces of teflon tape can end up caught in check valves and other places you don’t want it. Check for leaks carefully with soapy water. Do not tighten or loosen joints while under pressure.
 
  • Like
Reactions: Kage1339
Upvote 0
rc4fun said:
PS put the small filter first inline as it will stop a lot of moisture. And dry the cotton filter after each run.
Click to expand...
I must be missing something (wouldn't be the first time...). Assuming the small gold filter does contain a cotton filter, and depending on the ambient humidity, I think putting it right at the pump output is a waste of effort: 1) Depending on how long the pumping session is, it may become saturated, at which point it is useless; 2) the coalescing filter (large gold) has no filter medium to be consumed and is quite effective at removing moisture all day long. It seems to me it should be first in line at the pump's output.

I believe the OP's original plumbing was correct, only needing to put the blue desiccant filter vertically. Another benefit of the small, gold cotton filter at the end of the air path is, it will trap any possible dust coming from the desiccant material.
 
Upvote 0
It's not just water the cotton filter collects, the blowby oil from the compressor is stopped. If you don't mind oil in your coalescing filter then there is really no reason to have the small filter anywhere. There shouldn't be any moisture getting past the 2 large sections.
These are cheap compressors never really meant to pump breathable air.
Yes the small filter can become 50 or 60% saturated after 15-20 minutes which should be the limit of run time before cool down when the cotton should be swapped out for a dry one.
 
Upvote 0
You must log in or register to reply here.
Top Bottom
Back
Home
Forums
Resources
Menu